Service manual

SC Tables
SM 6-23 D127/D128
Trouble –
shooting
No.
Definition
Symptom Possible Cause/Countermeasure
B
[4002-4005]: Detailed error code
The calculation error in the CPU
occurs.
 Defective CPU
1. Replace the CPU.
821 Self-Diagnostic Error: ASIC
[0B00] B
ASIC error
The write-&-verify check error
has occurred in the ASIC.
 Defective controller board
1. Replace the controller.
[0B06] B
ASIC not detected
The ASIC of the I/O is not
detected.
 ASIC (controller board defective)
 Poor connection between North
Bridge and PCI I/F.
1. Replace controller board.
[0D05] B
Timer error between ASIC and CPU
The CPU checks if the ASIC
timer works properly compared
with the CPU timer. If the ASIC
timer does not function in the
specified range, this SC code is
displayed.
 System firmware problem
 Defective RAM-DIMM
 Defective controller
 Reinstall the controller system
firmware.
1. Replace the RAM-DIMM.
2. Replace the controller board.
[50A1] B
Video bridge device (ASIC) error 1
The CPU does not detect the
video bridge device.
 Defective I/F between the video
bridge device and controller
1. Replace the controller board.